Add chopped carrots, onions, and garlic to a crock pot.
In a mortar and pestle or spice grinder combine fennel seeds, oregano, rosemary, red pepper flakes, salt, and pepper. Grind together to form a fine seasoning mixture. Evenly season the pork butt on all sides.
In a large sauté pan, heat olive oil over medium-high heat. Sear all sides of the pork butt. Once browned, transfer pork to the crockpot with the onions and carrots.
Deglaze the pan with red wine, scraping any burnt bits off the bottom. Add in the chicken stock and simmer for 3-4 minutes until the sauce thickens slightly.
Pour the red wine sauce over the pork and vegetables, cover and cook on high for 6 hours.
Once the pork is done braising, remove from the crockpot and shred. Serve over mashed potatoes with the cooked carrots and extra sauce.
Notes
*If pork is not fork tender after 6 hours, continue cooking on high, checking every 30 minutes. Cooking time may vary based on the size of the pork butt.*You can add baby potatoes in with you roast if desired.*Leftovers can be stored in an airtight container in the fridge for 3-4 days.